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An efficient General Transit Feed Specification (GTFS) enabled algorithm for dynamic transit accessibility analysis.

S Kiavash Fayyaz S1, Xiaoyue Cathy Liu1, Guohui Zhang2

  • 1Department of Civil & Environmental Engineering, University of Utah, Salt Lake City, UT, United States of America.

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Summary
This summary is machine-generated.

This study introduces an efficient algorithm and open-source C++ toolbox for calculating public transit travel times, improving accessibility analysis for transit agencies and researchers by reducing computational time.

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Area of Science:

  • Urban planning and transportation science
  • Geographic Information Systems (GIS)
  • Data analytics and algorithm development

Background:

  • Public transportation is crucial for urban social functions, especially for populations with limited car ownership.
  • Accurate transit accessibility evaluation requires capturing spatiotemporal variations in transit services.
  • Existing software for General Transit Feed Specification (GTFS) data is computationally inefficient for high-resolution, all-times-of-day analysis.

Purpose of the Study:

  • To develop a computationally elegant and mathematically efficient algorithm for estimating transit travel times.
  • To create an open-source C++ toolbox for implementing the new algorithm.
  • To enable high-resolution transit performance analysis and accessibility studies.

Main Methods:

  • Developed a novel algorithm for spatiotemporal transit travel time estimation.
  • Implemented the algorithm in an open-source C++ toolbox.
  • Applied the toolbox to the St. George transit network for accessibility analysis.

Main Results:

  • The new algorithm significantly reduces computational time for transit travel time estimation.
  • The open-source toolbox facilitates high-resolution transit performance analysis.
  • Demonstrated practical application and transferability to other transit networks.

Conclusions:

  • The proposed algorithm and toolbox offer a computationally efficient solution for analyzing transit accessibility.
  • Transit agencies and researchers can leverage this tool for detailed transit network performance evaluation.
  • The approach enhances the ability to understand and improve public transportation services.